大家都搜：
[数]微分阶
导数的阶
1、trigonometric derivative───三角导数
2、first derivative───一阶导数；一阶微商
3、convective derivative───n.随流导数；[流]迁移导数；传递导数
4、derivative───adj.（艺术家或艺术作品）模仿的；受……影响的；（金融产品）衍生的；n.派生物；金融衍生产品；派生词；（化学）衍生物；导数
5、derivative calculator───导数计算器
6、derivative action───[自]微商作用
7、derivative rules───派生规则
8、indicated derivative───指示导数
9、cosine derivative───余弦导数
1、done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.───以前算过-,这是能量守恒，为了算出,简谐振荡的周期，我们求时间导数。
2、P-methylbenzensulforate trace components were determined by derivative spectrophotometer and optimum derivative order and wavelength intervals were selected.───导《分光光度法研究了对甲苯磺酸痕量组分的测定方法，并选择了求导阶数、农导波长间距等最佳条件。
3、when a company or an investor wants to buy a derivative contract for, say, oil or wheat or securitized mortgages, an order is placed with a trader at a bank.───当一家公司或者一个投资者想买一份衍生产品合同，例如石油或者小麦或者担保抵押，其买单是在一家银行的交易员那里。